Light-shield.



n' UNITED STATES rIA'IENT OFFICE.

CLARENCE E. STEVENS, OF WESTHAVEN, CONECTICUT.

morir-snmLn.y

To` all whom t may concern:

Be it known that I, CLARENCE E. STEVENS, a citizen of the UnitedStates, residing at Vest Haven, in the county of New Haven and State'of Connecticut,liave invented certain new and useful Improvements in Light- Shields, of which the following is a specifif cation.

This invention relates to illumination, and

Amore especially to diinniers; andthe object ofthe saine is vto produce a device for cutting oil rays, whether the same are produced by a ligrlted lamp or by the phantomy light reing from a beam shining into the re- VIt is well known, especially to railroad men, that by day or by nio-ht the phantom l may. come from a distant point, and perhaps it might even be sunlight. The pur pose of my present invention is the Vproduction of a shield which will positively cut oli thek rays of light from the lamp itself il thesaine be lighted or will ypositively pre-` vent the entrance of the foreignbeam from anotherk source and which by reflection in thel reflector ofthe lamp would give the Vappearance'ofa light. y

This Objecty is accomplished by thas-meid structure described below and shown in the drawings, wherein :-y

Figure 1 is an elevation,

Figs. 2 vand 3 vertical sections on the line 2 2 andB-'of Fig. 1 `looking in the direc-v tion of the arrows respectively opposite said lines in this view, and

Fig. 4 is a horizontal section 0n the line This device as a whole comprises a base 1 which may well be pivotally mounted. at 2 orif'the'bottoin B of a lampboX X'which is shown only in out-line'in Fig. 2 of thevv vpresent drawings, andmay have a slot'3 cut around its pivot and ymovable overa bolt 4 so that adjustment of the base and the parts carried thereby can be effected. Upstanding from' the sides of' the, base are standards 5 xtowhichA at- 6 are pivoted arms 7 carrying A or"7concavoconvex .as shown, and which should be blackened inside and outside sok that it can have no reflective properties.

I Thisentire structure is to be mounted with-y they are not absolutely necessary.

might Vbe carried by a linger fixedly con Specicatienof Letters Patent., y Patented Sept, 23, 1919,y Application led J' une l1, 1918. Serial No.` 237,758. j

inthe lamp box X between its lamp L and reflector R. I mighty say, however, that while the lamp herein is a bulb L disposed directly above the base the character of the lampk or lantern and its means of illumination are not necessary to the present'case. The reflector R within the lamp box will Stand behind the light. It would be to the left of the shield shown in Fig. 3 or at the yright iny Fig. 2

where the shield 'does not cover the light or lamp as will be clear. Said light is shown diagrammatically in Fig. 2 as a bulb supported byy the bolt 4 and upstanding therefrom, and L in Fig. 4 designates a bulb against the'arm. By adjusting one element on the other and then tightening the setA screw, the position of the core with respect to the arm may be changed at will. Mountwhich is supported by the pivot bolt 6 at ed on the right hand pivot 6 in Fig. 4 is an extension 13 rendered adjustable ywith respect to the other arm 7 by any suitable means such as a set screw 14, and this extension is threaded as shown to receive a weight 15, a jam nut 16 bein preferably employed to hold the weight w en it is adjusted. The details just described are employed byr preference, although of course The core nected with Vthe arm, yor it might be carried ydirectlyrby the arm. The extension rand weight might be omitted entirely if ther shield and they remainder of the ymovable parts weregnot ktoo heavy; but the weightl is intended to be 'a counterbalance so that the raising of the shield as described below will not require too strong an electric current.

Carried by the left hand standard 5 in any suitable manner is a plate QOwhich supports a curved solenoid broadly indicated by the numeral 21. As shown in Fig. 2, it is made f up of a number of spools disposed in an arc, so that the core 11 may pass through them as will be clear, and these spools are wound in a manner not necessary to show. The plate lamp.V If it be between the freiiector andthe light, asf in Fig-.3, the shield zinthat case Y essential.

and the Vsolenoid may also be rendered ad-V justable in any suitable manner. As 4shown herein, the plate is triangularandis fmo'u'n'tedf on the pivot 6, but a bolt'or rivet 22 passesu through the plate andthe standard so that one is not adjustable with Yrespect to the other'. .Ifl the. plateis' made adjustable inl' any way, it may not be necessaryjo.adjust- Much latitude inust be allowed vrthe manufacturerwith'respectto these details, and ythei proportions and materials'of parts are not InV operation, when the-.parts stand as seen in Fig-s. 2 and 3 with the shield in twhat might/beyoalled a verticalplane, it completely coversI the face of the vfreflector and does not oit' course cover thev light; 'butif the parts be so disposed vthatthe shield rests front of ...the light. and/behind the glass lens of the.v lantern, then"the shield covers, both the', light and the reflector, and. no beams mayv shine in or shine o'utlfronil the lamp in y question. lIf the convex side, of the' shield, is

blackened, lno bea-n1 which shines against the` shield would bereiected. Vhennowvitis.

desired tousethe lamp. inquestion a current, is directed throughthe solenoid, andthe ,core ll'is drawn into the saineg, This swingslthe, arins 7 on theiipivots 6 'inria manner-which will be clear, andthe shieldis caused to rise sov that iti stands inf aj horizontal plane y"above thel light and therefore out of the. path of the light,l whethershining 'direct vory `reflected; from, its own reflector. ln otherI wondps,rthl,e

shield is thenL at. the top; ofthe larnp box m inf:

closing they light Land its reflector and,

Wholly ede eff'deef .The armed eedleeedr-f erde i 5,; end; the perte -eerried gthereby beineatfopposite s idesof thelight, are ,of course. voutofjthe w-ay., Lhave described thisde vice as ,actuated electrically, but l it .is quite,

within "the spirit of Lthe. invention that.l mer I be, eetuered meehenieellyaelthdrgh, means to thisendare not 'set :forth .tl1erein,

The feregeirl'e deeeripren end the drew-J ingehe've refereeee te Wheeireey. bei eee-.` sidered, the preferred or ,-approvedforn 1 offmy invention. A.It islto., be; understood that I rna'ymalre such Achanges ihn-constitu tien. eriderrengemeet findfeembr'reten, Perte, ',reeterlele,L dlreenerens; et; .Cetera f may` prove expedient and, lfall wltlnnuthhe,

sco ek ofthe appended claims. aries thee fully deeerbed 11.1 what .I clairnkr as new e l I* p and desire tosecure by LettersPatent, is .z-Y

l.; A dimmer; fer the Pili?irdee standards, pivotsconnecting the .arms and standards respectively, whereby the. shield yf lerentrerr.

support, the basehavinga: slot Vstruck around theL shield to either position at will, n Y 2;"'`r'dimmer for the purpose described,

the same comprising a shield who'se'surfaces' n arefnnrective, arms projectingrigidly is@ Y, n Y A il'orathejside-edgesvoffsaid shield,` spaced the linger 10 with respect to the arn 7 standards, pivots Yconnecting theV arrns and standards respectively, .whereby the v`'shield meyetend in er1 uprelitipleee ferwerd .ef`

and EAa core carriedby-oneosaid. arms in POSIUQIL.

purpose set forth. Y

LA fer ,.ehe lrurreee ldeeeribrd; f

stand inan npright'plane between the: f. .Y Y Vreflector and lamp or in a horizontal plane;` v, aboveitsownfpivtaanameansfor moving i Y y thereflector.oiaglalnp o r lantern ,opina I f horizontalplane ablover'its'.ownpivots, 1 solenoid carried; by: onepf said standards,

o Vco-actwith the solenoid, thef,

freie die eide;4 edeee Seid Shield. epeeed standards pivots.t connecting .the .arms and eteederdle .reereetively;v whereby the Shield f Vmay stand in an upright plane forwarder@V the-refleeter. ,ef lamp; er 'lantern ier ,horizontal rlen'erabereiteif erre, .rreeel Le? solenoid .carried fby foneofsadQstandardsf T Y and 1cornp'rising e aI series of spools disposedf f Yinfenerefereerld.dlefpreete ,ite Steederdf e e fin-gen.adjustablymounted on the arm which@ :e Y ensegeei Seid piretzfe-.ed .eere feerred ba said finger andicurved Atocorrespond with thepurvature ofthe solenoid, for the puripose set forth., A.

eierV ref vthe @finger with! reepeet .te the arm 5. VIn a shield of the type described, ,the

eerebieetenxwth a besef@ pere Steederde e rising Ytherelfl'erlef,e-slreld,` armsprejeetng 1 f rigidly :frere @he-Sided ef .Sedxsheld end y ,Y fpivpts Abetween V,the .-respectivearms],and A* Y ...1120" .andthe arm pivoted-theretof.forAswinging;V4

Standards aref meefne `eerr-ed by, 'eneetendard Denied leeLerle .senesi-of, spools Y Acom,binatiovn'vwith abase,alpairo`f standardsV rising.; theretronn, a shield, arms proj ectingy i Y g rigidly frere,the Sidesef-Sedfeheldr eed. Pirate between-adleifreeneetire arms, feed standards,V of a solenoidv fStandard-ard#eemrreinef .t A Steedng ere-Streek ereerrdftherre'e Y.

of this standard, a ngerlniovablyrnounted on said pivot, meansgfor adjusting thep'osi respect ;to. its arm. l 1

er1 thelpvet ef thesremeinrlgerm,-eJWeght adjuster-bieren said extension, and mean TQ I Y A adjustingithe positionof theeXtension with. thesameeemprreieg e vShield Wheeeieurieeeeff are non-reflective, arms vprojecting.rigidly from the-sideiedges of said shield,-spaced*l V Whielri-ie. mounted/10e thee-f piret, feed e- 1 f eurred eere. eerried byrtheeetergerrdef Seid.-

;nger'and adaptedto cor-act-withsaid sole-y erledferdhererpeee eet'iereh-r .e Y

said pivotal means, and devices engaging said slot for holding the base in adjusted position; of a pair of standards risingL from said base, a vpair of arms pivoted to said standards respectively, a shield carried byV the outer ends of said arms, and means for resting one edge of the shield on the base whereby said shield stands in an upright plane or swinging ity around said pivots whereby said shield stands in a horizontal plane above the base, for thepurpose set forth.

7 In a shield of the type described, the combination with a base, means therein by whichv it may be pivotally mounted on a support, the base having a slot struck around said pivotal means, and devices engaging said slot for holding the base in adjusted` position; of a pair of standards rising from said base, apair of arms pivoted to said Vstandards respectively, a shield carried by the outer ends of said arms, electrically controlledmeans connected with one vstandard and the arm pivoted theretofor swinging the shield around said pivot, and an extension yand counterbalance Weight carried by the other arm, the whole for use substantially as hereinbefore described.

8. In a shield of the type described,"the combination of a'base, a pair of standards carried by said base, a shield, arms projecting radially from the sides of said shield, and pivots between the respective arms and standards, of a finger movably mounted upon a pivot, means for adjusting the position of the finger with respect to the arm which is mounted on that pivot, and means for swinging said linger for moving said shield.

In testimony whereof I aix my signature in presence of two witnesses.

CLARENCE E. STEVENS.

lVitnesses:

ALFRED W. SCHMITZ, MERVIN R. ARMSTRONG.

copies ot thin patent may be obtained for ve cents each, rby addressing the Commissioner of Patents, Washington, D. G. 

